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Finding the Fourth Proportional to 168,196.34, 252,201.45 and 66,891.80

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Solution

The fourth proportional to 168,196.34, 252,201.45 and 66,891.80 is: 100,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,196.34 : 252,201.45 = 66,891.80 : x
  2. Step 2: Convert to fraction form
    168,196.34/252,201.45 = 66,891.80/x
  3. Step 3: Cross multiply
    168,196.34x = 252,201.45 × 66,891.80
  4. Step 4: Simplify right side
    168,196.34x = 16,870,208,953.11
  5. Step 5: Solve for x
    x = 16,870,208,953.11/168,196.34
  6. Step 6: Final answer
    x = 100,300.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.